EP1722194A3 - Apparatus comprising a waveguide with reduced higher modes - Google Patents

Apparatus comprising a waveguide with reduced higher modes Download PDF

Info

Publication number
EP1722194A3
EP1722194A3 EP06252103A EP06252103A EP1722194A3 EP 1722194 A3 EP1722194 A3 EP 1722194A3 EP 06252103 A EP06252103 A EP 06252103A EP 06252103 A EP06252103 A EP 06252103A EP 1722194 A3 EP1722194 A3 EP 1722194A3
Authority
EP
European Patent Office
Prior art keywords
waveguide
order mode
mode energy
higher modes
reduced higher
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06252103A
Other languages
German (de)
French (fr)
Other versions
EP1722194A2 (en
Inventor
Gregory S. Moore
John Rahn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northrop Grumman Corp
Original Assignee
Northrop Grumman Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northrop Grumman Corp filed Critical Northrop Grumman Corp
Publication of EP1722194A2 publication Critical patent/EP1722194A2/en
Publication of EP1722194A3 publication Critical patent/EP1722194A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/58—Turn-sensitive devices without moving masses
    • G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
    • G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

An apparatus in one example has an integrated optic component having at least a higher order mode energy and a lower order mode energy. The integrated optic component also has a portion with a predetermined configuration such that radiation divergence losses of the higher order mode energy being much larger than radiation divergence losses of the lower order mode energy.
EP06252103A 2005-05-11 2006-04-18 Apparatus comprising a waveguide with reduced higher modes Withdrawn EP1722194A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/126,791 US20060258036A1 (en) 2005-05-11 2005-05-11 Waveguide with reduced higher modes

Publications (2)

Publication Number Publication Date
EP1722194A2 EP1722194A2 (en) 2006-11-15
EP1722194A3 true EP1722194A3 (en) 2008-11-26

Family

ID=36781471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06252103A Withdrawn EP1722194A3 (en) 2005-05-11 2006-04-18 Apparatus comprising a waveguide with reduced higher modes

Country Status (3)

Country Link
US (1) US20060258036A1 (en)
EP (1) EP1722194A3 (en)
CA (1) CA2542490A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080024786A1 (en) * 2006-07-31 2008-01-31 Honeywell International, Inc. Fiber optic gyroscope having a silicon-based optical chip
US7973938B2 (en) * 2008-09-24 2011-07-05 Honeywell International Inc. Bias-reduced fiber optic gyroscope with polarizing fibers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566757A1 (en) * 1990-06-14 1993-10-27 SMITHS INDUSTRIES AEROSPACE & DEFENSE SYSTEMS INC. Optical interface configuration for rate sensor apparatus
JPH09318367A (en) * 1996-03-29 1997-12-12 Tokimec Inc Optical fiber gyro and optical integrated circuit
US20020186930A1 (en) * 2001-03-05 2002-12-12 Simone Renoldi Integrated optical device comprising an adiabatic junction
US20030030814A1 (en) * 2001-07-11 2003-02-13 Osinski Marek A. Gyroscope with at least one rotation sensing element and detector of sagnac-shifted frequencies

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590015B1 (en) * 1985-11-08 1988-12-09 Thomson Csf SINGLE-MODE OPTICAL FIBER RECIPROCAL RING INTERFEROMETRIC DEVICE
US7302135B2 (en) * 2001-06-05 2007-11-27 Pirelli & C. S.P.A. Waveguide bends and devices including waveguide bends

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566757A1 (en) * 1990-06-14 1993-10-27 SMITHS INDUSTRIES AEROSPACE & DEFENSE SYSTEMS INC. Optical interface configuration for rate sensor apparatus
JPH09318367A (en) * 1996-03-29 1997-12-12 Tokimec Inc Optical fiber gyro and optical integrated circuit
US20020186930A1 (en) * 2001-03-05 2002-12-12 Simone Renoldi Integrated optical device comprising an adiabatic junction
US20030030814A1 (en) * 2001-07-11 2003-02-13 Osinski Marek A. Gyroscope with at least one rotation sensing element and detector of sagnac-shifted frequencies

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GUPTA A R: "Optimization of access waveguide width of multimode interference (MMI) couplers", OPTICS COMMUNICATIONS, NORTH-HOLLAND PUBLISHING CO. AMSTERDAM, NL, vol. 221, no. 1-3, 1 June 2003 (2003-06-01), pages 99 - 103, XP004427778, ISSN: 0030-4018 *
LLORENTE C ET AL: "Improved self-imaging characteristics in 1 <E1>N</E1> multimode couplers", NGS: OPTOELECTRONICS, INSTITUTION OF ELECTRICAL ENGINEERS, STEVENAGE, GB, vol. 145, no. 1, 20 February 1998 (1998-02-20), pages 65 - 69, XP006011325, ISSN: 1350-2433 *

Also Published As

Publication number Publication date
US20060258036A1 (en) 2006-11-16
CA2542490A1 (en) 2006-11-11
EP1722194A2 (en) 2006-11-15

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